Linux 2.6 - man page for true (linux section 1posix)
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TRUE(P) POSIX Programmer's Manual TRUE(P)
true - return true value
The true utility shall return with exit code zero.
CONSEQUENCES OF ERRORS
The following sections are informative.
This utility is typically used in shell scripts, as shown in the EXAMPLES section. The
special built-in utility : is sometimes more efficient than true.
This command is executed forever:
The true utility has been retained in this volume of IEEE Std 1003.1-2001, even though the
shell special built-in : provides similar functionality, because true is widely used in
historical scripts and is less cryptic to novice script readers.
false , Shell Commands
Portions of this text are reprinted and reproduced in electronic form from IEEE Std
1003.1, 2003 Edition, Standard for Information Technology -- Portable Operating System
Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C) 2001-2003 by
the Institute of Electrical and Electronics Engineers, Inc and The Open Group. In the
event of any discrepancy between this version and the original IEEE and The Open Group
Standard, the original IEEE and The Open Group Standard is the referee document. The orig-
inal Standard can be obtained online at http://www.opengroup.org/unix/online.html .
IEEE/The Open Group 2003 TRUE(P)
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